Musnad Abu Ya'la al-Mawsili 123:3

Abu Bakr ibn Abi Shaybah narrated to us, Abu al-Ahwas narrated to us, from Yahya ibn Sa'id, from Anas ibn Malik, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "You will surely encounter after me selfishness [regarding the distribution of wealth and rights], so be patient until you meet me."